Originally Posted by Evil Eye:
“I think the only thing that could "save" all this now for me (other than having CE stay on for at least another series) would be to have him appear in the Christmas special and have the regeneration half way through, so we get a fair bit of CE again and a chance to get to know the new Doctor.”
I think he'll probably only be back for the regeneration sequence, but who knows?
Personally, I'd like him to be mortally injured at the end of this series, and get dragged off into the Tardis by Billie, then leave it as a cliffhanger.
Start the Christmas special with the regeneration then have a story as well, give us a glimpse of the new Doctor's character. Make it 90 minutes long.